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main.dart
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main.dart
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import 'dart:io';
import 'package:desktop_webview_window/desktop_webview_window.dart';
import 'package:flutter/material.dart';
import 'package:path/path.dart' as p;
import 'package:path_provider/path_provider.dart';
void main(List<String> args) {
debugPrint('args: $args');
WidgetsFlutterBinding.ensureInitialized();
if (runWebViewTitleBarWidget(args)) {
return;
}
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({Key? key}) : super(key: key);
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
final TextEditingController _controller = TextEditingController(
text: 'https://example.com',
);
bool? _webviewAvailable;
@override
void initState() {
super.initState();
WebviewWindow.isWebviewAvailable().then((value) {
setState(() {
_webviewAvailable = value;
});
});
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
actions: [
IconButton(
onPressed: () async {
final webview = await WebviewWindow.create(
configuration: CreateConfiguration(
windowHeight: 1280,
windowWidth: 720,
title: "ExampleTestWindow",
titleBarTopPadding: Platform.isMacOS ? 20 : 0,
userDataFolderWindows: await _getWebViewPath(),
),
);
webview
..registerJavaScriptMessageHandler("test", (name, body) {
debugPrint('on javaScipt message: $name $body');
})
..setApplicationNameForUserAgent(" WebviewExample/1.0.0")
..setPromptHandler((prompt, defaultText) {
if (prompt == "test") {
return "Hello World!";
} else if (prompt == "init") {
return "initial prompt";
}
return "";
})
..addScriptToExecuteOnDocumentCreated("""
const mixinContext = {
platform: 'Desktop',
conversation_id: 'conversationId',
immersive: false,
app_version: '1.0.0',
appearance: 'dark',
}
window.MixinContext = {
getContext: function() {
return JSON.stringify(mixinContext)
}
}
""")
..launch("http://localhost:3000/test.html");
},
icon: const Icon(Icons.bug_report),
)
],
),
body: Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
TextField(controller: _controller),
const SizedBox(height: 16),
TextButton(
onPressed: _webviewAvailable != true ? null : _onTap,
child: const Text('Open'),
),
const SizedBox(height: 20),
TextButton(
onPressed: () async {
await WebviewWindow.clearAll(
userDataFolderWindows: await _getWebViewPath(),
);
debugPrint('clear complete');
},
child: const Text('Clear all'),
)
],
),
),
),
),
);
}
void _onTap() async {
final webview = await WebviewWindow.create(
configuration: CreateConfiguration(
userDataFolderWindows: await _getWebViewPath(),
titleBarTopPadding: Platform.isMacOS ? 20 : 0,
),
);
webview
..setBrightness(Brightness.dark)
..setApplicationNameForUserAgent(" WebviewExample/1.0.0")
..launch(_controller.text)
..setOnUrlRequestCallback((url) {
debugPrint('url: $url');
final uri = Uri.parse(url);
if (uri.path == '/login_success') {
debugPrint('login success. token: ${uri.queryParameters['token']}');
webview.close();
}
// grant navigation request
return true;
})
..onClose.whenComplete(() {
debugPrint("on close");
});
await Future.delayed(const Duration(seconds: 2));
for (final javaScript in _javaScriptToEval) {
try {
final ret = await webview.evaluateJavaScript(javaScript);
debugPrint('evaluateJavaScript: $ret');
} catch (e) {
debugPrint('evaluateJavaScript error: $e \n $javaScript');
}
}
}
}
const _javaScriptToEval = [
"""
function test() {
return;
}
test();
""",
'eval({"name": "test", "user_agent": navigator.userAgent})',
'1 + 1',
'undefined',
'1.0 + 1.0',
'"test"',
];
Future<String> _getWebViewPath() async {
final document = await getApplicationDocumentsDirectory();
return p.join(
document.path,
'desktop_webview_window',
);
}